Why can't the car key open the door?

[VanAaliyah]

The reasons why the car key cannot open the door are: 1. The remote key is out of battery; 2. The car battery is out of power, or there is strong signal interference around; 3. You can use the hidden mechanical key inside the remote key to open the door. If the mechanical key also cannot open the door, it is a door lock malfunction. If the car battery is out of power, the car's sensing system will naturally fail, resulting in malfunction. In this case, the car needs to be recharged. A common issue is the car key battery running out of power, leading to malfunction. Generally, the battery life of a car sensing key is about 2 years. If the battery is dead, the door cannot be opened via sensing. For cars with a one-button start, if the key battery is dead, you can only use the spare key inside the sensing key to open the door.